Make sure you sleep the night before the exam, to be able to give it your best shot.The last thing you want to be is groggy and unfocussed during the actual exam in case you follow the 'last minute cramming' style at the expense of your forty winks.
• Allocate time to exercise, play some sport or just unwind.
• Eat lighter meals and at smaller intervals to stay fresh and focused. This will also help reduce acidity, which tends to shoot up with anxiety.
• A healthy diet of green leafy vegetables and fresh fruits will help you stay alert.
• Avoid carbonated drinks and do not overdo the caffeine.
Stay healthy! Good luck!